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(No Model.) 2 Sheets-Sheet 1.

G. GULLMANN. DRBDGING APPARATUS No. 516,090. Patented Mar. 6, 1894.

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(No Model.) 2 Sheets-Sheet 2. 0. GULLMANN.

DREDGING APPARATUS. No. 516,090. P atented Mar. 6, 1894.

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UNITED STATES CHRISTOPHER GULLMANN, OF NEN YORK,

DREDGING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 516,090, dated March 6,1894. Application filed June 15, 1893- Serial No; 477,693- (No model.)

To aZZ it may concern.-

Be it known that I, Gnmsrornnn GULL- MANN, a citizen of the UnitedStates, residing at New York,in the county and State of New York, haveinvented new and useful Improvements in Dredging Apparatus, of which thefollowing is a specification.

This invention relates to certain improve- -Inents in dredging apparatusas pointed out in the following specification and claims and illustratedin the accompanying drawings in which Figure 1 is a partial sideelevatipn of my scraper and grapple and the mechanism for operating thesame. Fig. 2 is a side elevation of a portion of the mechanism shown inFig. 3 on a larger scale than the previous figure; the grapple beingopen. Fig. 3 is a vertical section in the plane was Fig. 2. Fig. 4. is ahorizontal section in the plane y y Fig. 3. Fig. 5 is a side elevationof the scraper and grapple when the grapple is closed. Fig. 6 is a faceview of the same. Fig. 7 is a sectional side elevation showing amodification of the means used for actuating the scraper and thegrapple. Fig. 8 is a plan or top view of the same.

' apparatus by means he object of my invention is to provide an of whichthe material which is to be removed, can either be taken up bodily anddumped on the desired spot, or said material can be moved up to themouth of a suction pipe which forms part of a suction and dischargeapparatus. by means of which the material is finally dumped on thedesired spot.

In the drawings the letter A designates the scow or dredge boat whichcontains a suction and discharge apparatus 17 (Figs. 7 and 8) by meansof which a portion of the material to be removed is drawn in through asuction pipe 18 and then forced out upon the dumping ground through adischarge pipe (not shown). Any suitable suction and discharge apparatusmay be used, but in the example illustrated in the drawings I have showna drum which is charged with steam from a boiler 20 (one or more) andthen the steam is condensed so as to create a partial vacuum in the drumand to produce the required suction, by which the material is drawn intothe drum and then live steam is admitted to the drum, by the pressure ofwhich the refuse is forced out to the dumping ground. On the deck of thescow is mounted a crane 21 which carries a scraper 22 and a grapple 23,said crane being so constructed that it can be swiveled around on a stud24: to which it is connected by pivots 25 so that it can be brought toan inclined or vertical position, thereby lowering or raising thescraper and grapple as may be required. For the purpose of actuating thecrane, the scraper and the grapple I employ a steam engine 26 (Fig. 8)from which motion is imparted to a shaft 27 mounted in a frame 28 inwhich are also mounted two drums 29 and 30. In the example shown inFigs. 1 to 6 ropes 31, 32 extend from the drum 29 under pulleys 33, 34(Figs. 3 and i) which are mounted on the pins 25 and from these pulleyssaid ropes extend over pulleys 35, 36 to sheaves 37 attached to astandard 38 which is firmly secured to the deck of the scow A (Fig. 1.)From the sheaves 37 the ropes 31,32 extend over pulleys 39, i0 mountedin the crane 21 (Figs. 1 and 3) thence down to the grapple 23 and theirends are fastened together and secured to the end of a lever $1. Thislever is pivoted to a link 42, which swings on a pivot 43 secured in abracket connected to the head 4.4L of the scraper 22 (see Figs. 1, 2 and5.) The grapple 23 is secured to a lever 45 which swings on a pivot 46secured in the shank 48 of the head 4.4. and the tail endof which isattached by a pivot 47 to the lever 41. The ropes 31 and 32 are wound inopposite directions upon the drum 29 and if this drum is turned so as totake up the rope 32 and let oit the rope 31, the grapple 23 is movedfrom its open position (Fig. 2) to its closed position (Fig. 5) and itthe drum 29 is turned in the opposite direction, the grapple is opened.

In the example shown in Figs. 1 and 2 the shank 48 of the head at isconnected at its end to the crane 21 by a pivot 49 and to said shank issecured a slide 50 by means of a pivot 51 and this slide extends througha guide 52 which is pivotally secured to the crane 2i (Fig. 3.) In theguide 52 are mounted two pulleys 53, 54 and on the slide are secured tworopes 55, 56. The rope 55 extends over the pulleys 53 and under a pulley57 to the drum 30 which is mounted in the frame 28 (Fig. 8) and the rope56 extends over the pulley 54: and under a pulley 58 to the drum 30 (seealso Figs. 3 and 4:). The ropes 55, 56 are wound in opposite directionsupon the drum 30 and if this drum is turned so as to wind up the rope 55and unwind the rope 5 6, the slide 50 is moved inward in the directionof arrow 1, (Fig. l) but if the drum 30 is turned so as to wind up therope 56, the slide 50 is moved outward in the direction of arrow 2. Bythese means an oscillating motion can be imparted to the scraper 22 andthe head 44 can be moved down upon the ground or moved up away from theground.

The motion of the drums 29 and 30 can be controlled by a suitablereversing gear 61 as shown in Fig. 1.

The pivots which support the feet of the crane 21 are mounted in lugs 02which rise from a plate 63 (Figs. 2, 3 and 4) secured to a bevel-wheel6i which is mounted upon the stud 24.- and engages abevel-wheel 65 whichis geared with the drivingshaft 27 so that a to tary motion can beimparted to it in either direction. In the example shown in Figs. 7 and8 the shank 48 of the head 44is connected to the crane 21 by a pivot 66and from a point above this pivot extends the rope 56 over a pulley 67which is secured to the standard 38 and from a point below the pivot 66extends a rope 55 over a pulley mounted on the plate 63. The ropes 55,56 are wound upon the drum 30 in opposite direction and if this drum isturned so as to take up the rope 56 and let out the rope 55, the head44: of the scraper is moved in the direction of arrow 5 (Fig. 7) and ifthe drum 30 is turned in the opposite direction, the head 4% moves inthe direction opposite to arrow 5: By these means an oscillating motioncan be imparted to the scraper. The rope 31 extends from the drum 29(Fig. 8) over a pulley 37 which is attached to the standard 38, thenceover pulleys 49, 39 to a pulley 68 secured to the shank 48 of thescraper, thence to lever 45 to which it is fastened. (See Figs. 7 and8). The rope 32 extends from the drum 29 over a pulley 37* secured tothe standard 38, thence over pulleys 49* 39* to a pulley mounted on thesideof pulley 68 (Fig. 7) thence to lever 41 to which it is fastened.When the rope 31 is wound up on drum 29, the grapple is opened and whenthe rope 32 is wound up, the grapple is closed. At the same time whenthe operation of winding up the rope 31 is continued after the grapplehas been opened, the grapple and the crane are carried up to theposition shown in dotted lines in Fig. 7 and if it is desired to carryup the grapple in a closed position, the operation of winding up therope 32 must be continued after the grapple has closed. Furthermore ifthe grapple is raised in a closed position it can be opened by reversingthe motion of the drum 29 so as to wind up the rope 31 while the rope 32is unwound to such an extent that the lever 41 can move from theposition shown in Fig. 5 to that shown in Fig. 2. It the scraper Whilebearing upon the ground, is moved in the direction of the arrow shownnear it in. Fig. 1, the

grapple is charged with sand or other matter and the contents of thegrapple can be moved up to the mouth of the suction pipe 18, and Iprefer to make the mouth of this pipe bellshaped so that when thecontents of the grapple are dumped into this month, they are in theproper position to follow the suction. The suction pipe 18 is providedwith a ball and socket joint 80 and suitable mechanism is provided toraise said suction pipe from the ground as shown in dotted lines in Fig.7 and by raising the grapple the contents of the same can be dumped intothe bell-shaped mouth of the suction pipe.

It must be remarked that the drums 29 and 30 may each be made in twosections, each of which is driven independent of the other in the mannercommonly used in hoisting machines and described in patent to JohnKnowlson, Jr., No. 150,765, dated May 12, 1874:, and many others.

What I claim as new, by Letters 'Patent, is

l. The combination with the suction-pipe 18, of an oscillating scraperfor moving the material to the entrance of the suction-pipe, andmechanism for oscillating the scraper to and from the suction-pipe,substantially as described.

2. The combination with the suction pipe 18 of a scraper and a grappleand mechanism for imparting to thescraper and grapple a reciprocatingand a rising and falling motion substantially as described.

3. In a dredging apparatus, the combination with a suction pipe, of apivoted swinging crane, mechanism for swinging the crane vertically, ashank pivotally connected with the crane, carrying a scraper and agrapple and movable to and from the suction pipe for causing the scraperto move the material to the entrance of the suction pipe, and means formoving the shank and operating the grapple, substantially as described.

4. In a dredging apparatus, the combination of a pivoted swinging crane,mechanism for swinging the crane vertically and also laterally, a shankpivoted to the crane and carrying at its lower end a scraper and agrapple, a slide pivoted to the shank and having a sliding engagementwith the crane, and means for operating the grapple, substantially asdescribed.

5. The combination with asuction-pipe 18, of a pivoted swinging crane, ashank connected with the crane and provided at its lower end with ascraper 22 for moving the material to the entrance of the suction-pipe,and means for swinging the crane and oscillating the shank,substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

CHRISTOPHER GULLMANN. lVitnesses:

WM. 0. HAUFF, E. F. KASTENHUBER.

and desire to secure

